package com.thghh.ch3.list;

/**
 * @author Zhikang.Peng
 * @version 1.0
 * @email thghh@qq.com
 * @date 2020/8/20 15:29
 */
public interface Elem {

    /**
     * Key used for search and ordering
     * @return
     */
    int key();
}
